Refrigerated means.



PATENTED MAY 19, 1903.

FZ'TF/VEYE A. E. GEORGE & E. EADEMAGEEE.

EEEEIGEEATINQ MEANS.

APPLICATION FILED DEO. 30,1901.

N0 MODEL.

UNITED STATES Patented May 19, 1903.

PATENT FFIGE.

AMnRosa F. GEORGE AND FRANK RADEMACHER, or Los ANGELES,

GALIFQRNIA.

vREI-'RIGERATING. MEANS.

SPECIFICATION forming part of Letters Patent'No. 728,702, dated May 19, 1903.

Application filed December 30, 190

Our invention is especially valuable as applied to railway-cars used inl the transportation of fruits, meats, vegetables, and all perishable articles; but it is likewise adapted to be used inany situation where a refrigerant is required. A description ofthe same'as applied to fruit-cars will explain the details of our invention, so that the'same may be readily understood without detailing at length the dierent uses to which it may beapplied and the manner in which it is applied.

Our invention will also be found especially valuable in connection with -frigerators in hotels, private residences, &c., whichrequire t0 be frequently'replenished with ice or other refrigerant to maintain therein a reduced temperature. XVe will, however, limit our description to themanner of applying our inventonto a fruit-car, that any oneversed in such mattersl may readily practice 4our invention. In the accompanying drawings, forming part'of this specification, are three figures,- viz: Figure lisa vertical longitudinal section ofa carem-bodying our in'vcntion. Fig. 2 is a vertical transverse sectionof said car, taken on the line 2 2 of Fig. l and looking in'the direction indicated by the arrow on the drawingl in proximity thereto. Fig. 3 is another vertical transverse section taken on line 3 3 of Fig. 1 and looking inthe direction indicated by the arrow'.

In the draw'ings, A represents the storing chamber or compartment in which the article to be transported is packed. A This chamber is inclosed in the usual well-known casing for refrigerator-cars, composed of non- 1. Serial No. 87.810. (No modelJ conductingsubstances.l At-the top of this chamber and above the lend of the car we place a brine`or'chlorid-ofcalcinm tank or receptacle B, which is filled with brine re-v duced in temperature to the proper degree and adapted to be transferred from onepoint to another' through pipes.

In the lower part of the car and beneath the flooring of the storage-chamber we provide a drip-chamber C, which is connected with the brine-chamber by a series of refrigerating-pipes-D. (Wehaveshownsixinnumber.) These pipes are disposed along and close to the ceiling of the storage-chamber, (being thef'zone of the'warmest air in refrigerators,) commencing with the brine-chamber at the other end of the car. They are united by means of a series of Ts F with the pipe E. On this pipe E is placed a thermostat G of suitable construction to regulate the size 0E the opening through the pipe by means of. different degrees of temperature. As this thermostat is no part of our invention,'we willnot describe it, having shown it only in a general way. It is so arranged, however, that whenever the temperature inthe chamber falls below 409 it` will shut off-connection between the brine-chamber and the drip chamber C, and when the temperature rises above 40 it will open and permit the brine in the pipes D along the ceiling to pass gradually down into the drip-chamber.

lThis will causethe cold brine to flow into the pipes from the brine-chamber and again reduce the temperature to or below 40o, when it will again close. By this means the brine in the chamber will be permitted to feed down -connected to the ceiling of the chamber by the supports I. This will prevent the moisture condensed on the refrigerating-pipes from dropping down into the storage-cham- IOO ber and damaging the contents therein. These drip-troughs are inclined in the direction of the drip-pipe J, with which they are all connected. This drip-pipe passes down to and forms an 'S-trap K, and thence passes out of the car. This trap enables us to maintain a liquid seal in the pipe to prevent the warm air on the outside of the car from entering into the storage-chamber. By this means all moisture generated in the car will be carried off, and the air therein will soon become thoroughly dry. and be kept in that conditions l Leading from the end of the drip-tank at the end next below the brine-tank is a ventpipe L, which will permit the air in the dripreceptacle to pass up into the brine-tank as the brine passes from the brine-tank into the drip-tank. On this pipe We place a non-re? pipe connection with the screw-threaded opening O, the same being closed by the screw-plug P. This is housed by the pivoted cover Q, held closed by thehasp R.

Below the center of and connectingwith the drip-tank we provide a discharge-port S,

controlled by the valve T, which will normally keep the port closed; but when the pipe-coupling is placed in this port and proper connection made to drain off the contentsof the drip-tank the valve-wheel V is turned, which will raise this valve T and permit the contents topass out of the drip-tank through the port. When the contents are drawn out, the valve-wheel is nnscrewed, permitting the 1 valve T to close, when the pipe connection is into the opening.

removed and the plug W is firmly screwed Th uswhile the brine-tank is being filledv with refrigerated brine the drip-tank is emptied of the warmer brine by means of pipe connections and is refrigerated again for future use.

Having described our invention, what we claim as new, and desire to secure by Letters Patent, is-

l. In a refrigerator, a storage-chamber; a brine-tank on the top thereof; a drip-tank be low the same; refrigerator-pipes leading from the brine-tankithrough the storage-chamber, and communicating with the drip-tank; an air-pipe extending from the drip to the brinetank, a thermostat on the brine-conducting pipes leading from the brine-tank to the drip-tank; and means to connect the brinetank with a refrigerated brine-supply tank and means to connect the drip-tank-with a contents of thedrip-tank may be transferred from the drip-tank and refrigerated for future use. f

` 2. The herein-described means for maintaining a uniform temperature iu a storagechamber, comprising a brine-tank havingdetachable valvular` connections adapted to be connected with a refrigerator storage-reservoir; a'storage-chamber below said brinetank, a drip-tank below the storage-chamber, the said drip-tank being connected with the brine-tank'by brine-conveying pipes extendi'ng through the storage-chamber; a thermostat in the chamber on the brine-connecting pipes to regulate the fiow of brine from the brine to the drip tank, the brine-tank having air connections with vthe drip-tank to `permit the passage of air from the drip tothe brine tank, thev brine tank being provided with valvular means to detachably connect with a stationary reservoir fo`t` discharging the warmer brine from the d rip-tank,whereby new and refrigerated brine may besupplied to the brine-tank and the warmer brine removed from the drip-tank without affecting the temperature in the storage-chamber, while the storage-chamber .may be moved from place to place.

The herein-described means for transporting perishable articles lon g distances, comprising aLrailway-car provided with' a storage-chamber for the reception of said articles; a brine-tank above the same and a driptank below the storage-chamber, connectingpipes extending from the brine chamber through the storage-chamber tothe drip-tank for conveying brine, thermal means, in the storage-chamber 'on the connecting-pipes to regulate the flow of brine from the upper to the lower tank; a vent-pipe extendingA from the drip to the brine tank to permit the passage of air only from thev drip to the brine tank, the upper tank being provided with means to connect with a stationary reservoir for supplying refrigerated brine, thelower tank being provided with means to detachably connect with a stationary brine-receiving reservoir, whereby the warm brine may be drawn off `from the drip-tank while lthe brine-tank may be supplied with a new suproo ply of refrigerated brine, in a short space of time and not affect the temperature in the storage-chamber.

' In witness lthat We claim the' foregoing we have hereunto subscribed our names this 24th day of December, -l 90 1.

'AMBRosE F. GEORGE. FRANK RADEMACHER.

Witnesses:

HENRY T. HAZARD, G. E. HARPnAM. 

